How Much Coffee Do I Need to Make a 30-Cup Urn?

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To make 30 8-ounce cups of coffee, the brewer needs 40 to 80 tablespoons of coffee. Typically, one 6-ounce serving of coffee takes 1 to 2 tablespoons, depending on how strong the brewer wants the taste to be.

Thirty cups of coffee is equal to 240 ounces. When that number is divided by 6 for 6-ounce servings of coffee, it equals 40 servings.

Forty to 80 tablespoons is equal to 5 to 10 cups of ground coffee. For maximum quality, the brewer should use filtered water. The water should reach 195 degrees Fahrenheit but not be hotter than 205 degrees Fahrenheit for optimum flavor.